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Outstanding Balances of Short-Term Debt by Type of Collateral Securing Debt (Detail) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2014 Contract | Dec. 31, 2013 Contract
Short-term Debt [Line Items] |  |
Number of Facilities | 15 | 13
Outstanding | $ 1,718,430 | $ 862,763
Residential Loans |  |
Short-term Debt [Line Items] |  |
Number of Facilities | 5 | 5
Outstanding | 852,267 | 184,789
Limit | 1,400,000 | 1,400,000
Residential Loans | Minimum |  |
Short-term Debt [Line Items] |  |
Maturity | 2014-07 | 2014-01
Residential Loans | Maximum |  |
Short-term Debt [Line Items] |  |
Maturity | 2015-04 | 2014-12
Commercial Loans |  |
Short-term Debt [Line Items] |  |
Number of Facilities | 1 | 1
Outstanding | 12,413 |
Limit | 100,000 | 100,000
Maturity | 2015-04 | 2014-04
Real Estate Securities |  |
Short-term Debt [Line Items] |  |
Number of Facilities | 9 | 7
Outstanding | $ 853,750 | $ 677,974
Real Estate Securities | Minimum |  |
Short-term Debt [Line Items] |  |
Maturity | 2014-07 | 2014-01
Real Estate Securities | Maximum |  |
Short-term Debt [Line Items] |  |
Maturity | 2014-09 | 2014-02

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),16(a)(1)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Subparagraph a(1) -Article 7 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13 -Subparagraph 2, 3 -Article 9 + Details
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